CN101025971A - Bar-code reading apparatus, bar-code reading method, and library apparatus - Google Patents

Bar-code reading apparatus, bar-code reading method, and library apparatus Download PDF

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Publication number
CN101025971A
CN101025971A CNA2006100922724A CN200610092272A CN101025971A CN 101025971 A CN101025971 A CN 101025971A CN A2006100922724 A CNA2006100922724 A CN A2006100922724A CN 200610092272 A CN200610092272 A CN 200610092272A CN 101025971 A CN101025971 A CN 101025971A
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China
Prior art keywords
bar code
unit
reading
bar
magnetic tape
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CNA2006100922724A
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Chinese (zh)
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CN101025971B (en
Inventor
星野敬亮
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Fujitsu Ltd
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Fujitsu Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00Digital computers in general; Data processing equipment in general
    • G06F15/02Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/06Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • G11B15/07Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape on containers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/675Guiding containers, e.g. loading, ejecting cassettes
    • G11B15/68Automatic cassette changing arrangements; automatic tape changing arrangements
    • G11B15/682Automatic cassette changing arrangements; automatic tape changing arrangements with fixed magazines having fixed cassette storage cells, e.g. in racks
    • G11B15/6835Automatic cassette changing arrangements; automatic tape changing arrangements with fixed magazines having fixed cassette storage cells, e.g. in racks the cassettes being transferred to a fixed recorder or player using a moving carriage
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04Magazines; Cassettes for webs or filaments
    • G11B23/041Details
    • G11B23/042Auxiliary features

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Automatic Tape Cassette Changers (AREA)
  • Automatic Disk Changers (AREA)

Abstract

The present invention relates to bar-code reading from a carried object such as a cartridge and enables the bar-code reading from a gripped carried object. For a bar-code label attached to a carried object such as a cartridge storing a magnetic tape, a bar-code reading unit is provided in a hand unit, which grips the carried object, at a surface opposite to the carried object; the bar-code reading unit includes a light source (light emitting device) that emits light to the bar-code label and a light receiving unit (light receiving device) that receives reflected light from the bar-code label; the bar-code label is detected by scanning with the light; and therefore, the gripping of the carrier object can be performed concurrently with the reading of the bar-code label.

Description

Apparatus for reading of bar code, bar code read method and library apparatus
Technical field
The present invention relates to read the apparatus for reading of bar code that is attached to the bar coded sticker on tape cassete (being designated hereinafter simply as " magnetic tape cassette (cartridge) ") etc., more specifically, data bank (1ibrary) device that relates to a kind of apparatus for reading of bar code, bar code read method, bar code fetch program and be used to read bar code from the reflected light of bar coded sticker.
Background technology
Magnetic tape cassette comprises the tape that is used to write or read various data, the bar coded sticker that is used as label.Library apparatus is contained in magnetic tape cassette in the box body (cell) and is furnished with: drive is used for from the tape sense data or writes data to tape; The robot device unit is used for transporting magnetic tape cassette between box body and drive; And telepilot, be used for functional unit, for example robot device unit and drive are controlled, and the robot device unit is furnished with the barcode reader that is used for reading from magnetic tape cassette bar coded sticker.The volume information that barcode reader read is used to discern magnetic tape cassette etc.Known barcode reader comprises: the laser class that uses polygon mirror, lasing light emitter etc.; And the CCD type that has made up lens and CCD (charge-coupled image sensor) device.
Read about this bar code, disclosure (first page of right hurdle at Japanese Patent Application Laid-Open No.1991-171248,12 have gone etc.) in, under the situation of card type electron device, be provided with light emitting devices and optical pickup apparatus, shine bar code and by receiving reflected light by light, and bar code is read with optical pickup apparatus with light emitting devices.In the disclosure of Japanese Patent Application Laid-Open No.1997-91930 (0021 section, Fig. 3 etc.), a kind of library apparatus that reads bar code by the reflected light from the bar coded sticker of the recording medium in the box body is disclosed.
At this incidentally, use the barcode reader of optics polygonal mirror, lens, CCD etc. to increase manufacturing cost, and the time with the whole bar coded sticker of laser beam irradiation, distance between lasing light emitter and the bar coded sticker is elongated, thus owing to the reasons such as half angle characteristic of lens cause barcode reader can not miniaturization.Such barcode reader can not be arranged on the robot device unit that is used for transporting magnetic tape cassette, and when the ratio of the area that is occupied by barcode reader in the library apparatus increased, the moving range of robot device unit and the installation of box body all can be hindered.Under the situation of small-sized library apparatus, the storage efficiency of magnetic tape cassette may reduce.
For example, shown in Figure 15 A and 15B, library apparatus 100 is furnished with barcode reader 108, and it is positioned at the extracting of transporting robot 104 (hand) unit 106 that is used to transport magnetic tape cassette 102.Clamp 110,112 is arranged on the side of placement unit 106, is used to clamp magnetic tape cassette 102.Row 114 are one group of a plurality of box bodys 116 that are used to hold magnetic tape cassette 102.Transport robot 104 along row 114 vertical moving placement units 106, barcode reader 108 is positioned on the bar coded sticker 118 that reads target magnetic tape cassette 102, and reads bar code from this bar coded sticker.
In the case, barcode reader 108 is made up of CCD 120, lens 122 etc., and has taken relatively big volume on the surface of placement unit 106.
In this barcode reader 108, the clip position of clamp 110,112 that reads position and placement unit 106 is inconsistent, in the example of Figure 15 B, has produced the difference in height of Δ h.If use barcode reader 108, then by reading after bar code write down volume information, the position of placement unit 106 must change to magnetic tape cassette 102, and magnetic tape cassette 102 should be held, and pinches step to carry out magnetic tape cassette outside reading.That is to say, when magnetic tape cassette 102 is put into library apparatus 100, need two steps: the step that reads bar coded sticker 118; And magnetic tape cassette 102 passed to step in the box body 116.Therefore, have following problem: the input process that magnetic tape cassette 102 is passed in the library apparatus 100 has expended the time.
Japanese Patent Application Laid-Open No.1991-171248 and 1997-91930 are not open or hint this type of problem of existence, and do not comprise the structure and the notion of head it off yet.
Summary of the invention
First purpose of the present invention relates to carries out bar code from the carried object (carriedobject) such as magnetic tape cassette and reads, and can carry out bar code from the carried object of clamping and read.
Second purpose of the present invention relates to from being attached to carries out bar code such as the bar code on the carried object of magnetic tape cassette and reads, and makes clamping carried object and the placement unit miniaturization with the function that reads bar code.
The 3rd purpose of the present invention relates to from being attached to carries out bar code such as the bar code on the carried object of magnetic tape cassette and reads, and enlarges the clamping carried object and have the moving range of the placement unit of the function that reads bar code.
In order to realize above purpose, the present invention includes bar code reading unit, be used for carrying out bar code such as the bar coded sticker on the carried object of the magnetic tape cassette that tape is housed and reading from being attached to; This bar code reading unit is arranged on the placement unit, this placement unit with the carried object facing surfaces on the clamping carried object; Bar code reading unit comprises making uses up the light source that shines bar coded sticker, and is used for receiving the catoptrical light receiving unit from bar coded sticker; Because detect bar coded sticker by photoscanning, thus reading of the clamping of carried object and bar coded sticker can finish simultaneously, thereby realized above purpose.
Therefore, a first aspect of the present invention provides a kind of apparatus for reading of bar code, and it comprises bar code reading unit, and this bar code reading unit is built in the housing (case) of the placement unit of clamping carried object; Bar code reading unit reads the bar code of carried object; Apparatus for reading of bar code reads bar code from the carried object of placement unit clamping.According to this structure, can read bar code from the carried object of placement unit clamping, thereby realize above purpose.
In this apparatus for reading of bar code, preferably, the Optical Transmit Unit of bar code reading unit and light receiving unit are arranged on the relative front surface place of carried object in the housing with placement unit.
Bar code reading unit preferably includes pointolite and light receiving unit, by luminous and receive reflected light from bar code to bar code from pointolite, and produces the output signal of representing bar code.
Placement unit preferably includes the scanning mechanism unit, and it makes bar code reading unit be parallel to bar code and scans.According to this structure, can be parallel to bar code and carry out bar code scanning, and can read bar code from the carried object of placement unit clamping.
This apparatus for reading of bar code can comprise the scanning mechanism unit, and it is by installing the screw shaft that can rotate in placement unit, and by motor screw shaft is rotated, and makes bar code reading unit be parallel to bar code and scans.
In this apparatus for reading of bar code, in the placement unit clamping under the situation of carried object, can operate the Optical Transmit Unit in the bar code reading unit, make it receive reflected light from bar code.
A second aspect of the present invention provides a kind of bar code read method, comprises following process: utilize placement unit to come the clamping carried object; Be parallel to that the bar code that is attached on the carried object scans and luminous to bar code; And the reflected light that obtains from bar code detected, thereby obtain the detection information of this bar code.This configuration also can realize above purpose.
This bar code read method preferably includes following process: use the light that is sent to come scanning bar code; And correspondingly detect reflected light from bar code with photoscanning.
In this bar code read method, carried object can be the tape cassete with bar coded sticker.
A third aspect of the present invention provides a kind of library apparatus of storing magnetic tape cassette, and it comprises: delivery unit is used to transport magnetic tape cassette; And bar code reading unit, it is built in to be installed in and is used on the delivery unit in the housing (case) of placement unit of clamping magnetic tape cassette, this bar code reading unit reads the bar code of magnetic tape cassette, and described library apparatus reads bar code from the magnetic tape cassette of placement unit clamping.
According to this structure, because can read bar code from the magnetic tape cassette of placement unit clamping, and bar code reading unit is built in the housing of placement unit, so placement unit is able to miniaturization and its moving range enlarges.
In this library apparatus, preferably, the Optical Transmit Unit of bar code reading unit and light receiving unit are arranged on the relative front surface place of magnetic tape cassette in the housing with placement unit.
This bar code reading unit preferably includes pointolite and light receiving unit, by luminous and receive reflected light from bar code to bar code from pointolite, and produces the output signal of representing bar code.
In this library apparatus, placement unit can comprise the scanning mechanism unit, and it makes bar code reading unit be parallel to bar code and scans.
This library apparatus can comprise the scanning mechanism unit, and it is by installing the screw shaft that can rotate in placement unit, and by motor screw shaft is rotated, and makes bar code reading unit be parallel to bar code and scans.
In this library apparatus, in the placement unit clamping under the situation of magnetic tape cassette, can operate the Optical Transmit Unit in the bar code reading unit, make it receive reflected light from bar code.
A fourth aspect of the present invention provides a kind of bar code fetch program of being carried out by computing machine, and it may further comprise the steps: the command information that is used for the clamping carried object to placement unit output; Output order information, the bar code that light source is parallel to be attached on the carried object scans, and luminous to bar code; And detect the reflected light that obtains from bar code, to obtain the detection information of this bar code.
Characteristic of the present invention and advantage are listed as follows:
(1) is built in the placement unit that this carried object in clamping because be used for reading the bar code reading unit of the bar code on the carried object, so apparatus for reading of bar code can be realized miniaturization, and to the clamping of carried object can with reading simultaneously of bar code carried out.
(2) because the bar code reading unit that is used for reading the bar code on the magnetic tape cassette is built in the library apparatus clamping in the placement unit of this magnetic tape cassette that tape is housed, thus to the clamping of magnetic tape cassette can with reading simultaneously of bar code carried out.
(3) being built in the library apparatus clamping because of the bar code reading unit that is used for reading the bar code on the magnetic tape cassette in the placement unit of this magnetic tape cassette that tape is housed, so the moving range of placement unit can access expansion, and the storage space of magnetic tape cassette can access expansion or under same storage space condition, can make the library apparatus miniaturization.
Description of drawings
Read the detailed description of following examples in conjunction with the drawings, other purposes of the present invention, characteristics and advantage will become more clear, in the accompanying drawing:
Fig. 1 shows the apparatus for reading of bar code according to first embodiment;
Fig. 2 shows the magnetic tape cassette with bar coded sticker;
Fig. 3 A, 3B and 3C show the bar code read operation;
Fig. 4 shows the apparatus for reading of bar code according to second embodiment;
Fig. 5 shows the library apparatus according to the 3rd embodiment;
Fig. 6 shows the apparatus for reading of bar code in the library apparatus;
Fig. 7 shows the relation between placement unit, apparatus for reading of bar code and the magnetic tape cassette;
Fig. 8 is the block diagram of the example of controller;
Fig. 9 is the process flow diagram of the handling procedure of the operation that powers in the library apparatus;
Figure 10 is the process flow diagram that transports the handling procedure of magnetic tape cassette etc. in library apparatus;
Figure 11 is the process flow diagram of the handling procedure of drive unit;
Figure 12 is the process flow diagram that reads the handling procedure of bar coded sticker;
The magnetic tape cassette that Figure 13 A and 13B show in the box body transports and the bar coded sticker read operation;
Figure 14 A and 14B show the relation between the installing space of the moving range of placement unit and box body; And
Figure 15 A and 15B show that magnetic tape cassette transports and the bar coded sticker read operation in traditional library apparatus.
Embodiment
[first embodiment]
Below with reference to Fig. 1,2 and Fig. 3 A to Fig. 3 C the first embodiment of the present invention is described.Fig. 1 shows the structure example figure of apparatus for reading of bar code; Fig. 2 shows the magnetic tape cassette (tape cassete) with bar coded sticker; Fig. 3 A shows the bar code read operation to Fig. 3 C.
Apparatus for reading of bar code 2 is placed on the extracting frame unit 8 of placement unit 6, and placement unit 6 is used for clamping magnetic tape cassette 4, i.e. carried object, and be provided in transport in bar coded sticker 10 from the magnetic tape cassette 4 read bar code 12 (Fig. 2).Grasp frame unit 8 and be attached with clamp 14,16, thus clamp 14,16 move left and right open and close up, thereby magnetic tape cassette 4 is by clamp 14,16 clampings.For the bar coded sticker 10 from magnetic tape cassette 4 reads bar code 12, grasp frame unit 8 and comprise track element 18, and bar code reading unit 20 can be with respect to bar coded sticker 10 parallel moving by utilizing track element 18 to be installed to be.Bar code reading unit 20 is furnished with: light emitting devices 22, and it is the pointolite with light beam Li irradiation bar coded sticker 10; And light receiving element 24, be used to receive reflected light Lr from bar coded sticker 10.Light emitting devices 22 for example is made of light emitting diode, and light receiving element 24 for example is made of photistor.Light emitting devices 22 and light receiving element 24 are placed in sheath (casing) unit 26, and the bar code read module is made of light emitting devices 22, light receiving element 24 and sheath unit 26.
Scanning mechanism unit 28 makes bar code reading unit 20 can be parallel to bar coded sticker 10 and scans.When applying driving voltage Vi on input terminal 30, and luminous, bar coded sticker 10 is shone by light beam Li as pointolite for light emitting devices 22.By the reflected light Lr of light receiving element 24 receptions from bar coded sticker 10; Obtain detection signal Vo from light receiving element 24; And detection signal Vo can gather from lead-out terminal 32.Bar code 12 is read in the variation of level that can be by detection signal Vo.
To shown in the 3C, in bar code 12, by on white substrate 32, arranging one group of constant height, the different bar 34 of width, and the interval 36 of between bar 34, creating different in width, write the bar code data of expression label as Fig. 2 and Fig. 3 A.When bar code 12 is shone by light beam Li, and scanning mechanism unit 28 makes bar code reading unit 20 when bar code 12 scans, and can obtain output signal Vo, and it has the varying level of the bar 34 on the expression bar code 12.
In this case, when bar code reading unit 20 utilizes light beam Li to scan with the bar coded sticker 10 shown in irradiation Fig. 3 A corresponding to the length W1 of bar coded sticker 10, light receiving element 24 can obtain bar 34 corresponding to bar code 12,36 etc. pulse detection signals Vo at interval, shown in Fig. 3 B.Be provided with clear area QZ, start bit SB, feature (character) data CD, position of rest STB and clear area QZ among the length W1 of bar coded sticker 10.Therefore, can from received signal, read characteristic CD, as bar code data.
In this case, scanning mechanism unit 28 can make bar code reading unit 20 scan corresponding to the length W1 or the W2 of bar coded sticker 10, if bar coded sticker 10 has short length W2, so just obtain received signal, shown in Fig. 3 C corresponding to this length.
In apparatus for reading of bar code 2 and read method thereof, can utilize simple mechanism to read bar code 12, and can in the process of transporting, read the label of the magnetic tape cassette 4 that placement unit 6 transported at an easy rate from the bar coded sticker 10 on the magnetic tape cassette 4 of placement unit 6 clampings.
[second embodiment]
With reference to Fig. 4 the second embodiment of the present invention is described below.Fig. 4 shows the structure example of apparatus for reading of bar code.In Fig. 4, the part identical with Fig. 1 represented with identical label.
In the present embodiment, scanning mechanism unit 28 is made of slide block 40, screw shaft 42, gear case 44, drive motor 46 etc., is used to make bar code reading unit 20 to be parallel to bar coded sticker 10 and scans.That is to say that the slide block 40 of being furnished with bar code reading unit 20 is attached on the screw shaft 42 (being also referred to as screw rod or ball-screw), the rotation by screw shaft 42 can make slide block 40 move left and right.Screw shaft 42 is connected to drive motor 46 by gear case 44.Gear case 44 is furnished with scrambler 48, and scrambler 48 is the rotation detectings that detect this rotation.
When motor driven voltage Vd was applied on the drive motor 46 from driving input terminal 50,52, drive motor 46 was rotated with constant speed, and this rotation is transported to screw shaft 42 by gear case 44, thereby made screw shaft 42 rotations.Slide block 40 is owing to the constant speed of screw shaft 42 moves, so bar code reading unit 20 is parallel to bar coded sticker 10 and scans.Detect the rotation of screw shaft 42 by scrambler 48, and obtain rotation from lead-out terminal 54 and detect output Ve.
Power source voltage Vcc is applied to each end of light emitting devices 22 and light receiving element 24 jointly, and the other end of light emitting devices 22 is furnished with switch control input end 56; And the other end of light receiving element 24 is furnished with lead-out terminal 58.When switch control input end 56 applies switch controlling signal Vs, light emitting devices 22 is luminous, and light beam Li is radiated on the bar code 12 of bar coded sticker 10.By the scanning of light beam Li, light receiving element 24 detection of reflected light Lr, and obtain output signal Vo.Gather output signal Vo by lead-out terminal 58.
Therefore, in the present embodiment, also can read bar code 12 by bar code reading unit 20, and identical with the situation of first embodiment, can read label from the magnetic tape cassette 4 that is transporting.
[the 3rd embodiment]
Hereinafter with reference to Fig. 5,6,7 and 8 third embodiment of the present invention is described.Fig. 5 shows the structure of library apparatus; Fig. 6 shows the structure of the apparatus for reading of bar code in this library apparatus; Fig. 7 shows the relation between placement unit, apparatus for reading of bar code and the magnetic tape cassette; And Fig. 8 is the block diagram of the example of controller.In Fig. 5,6,7, the part identical with Fig. 1 or 4 represented with identical label.
As shown in Figure 5, library apparatus 60 is furnished with housing unit 62, a plurality of row (column) 641,642 ... 64n, transport robot 66, controller 68 and a plurality of drive unit 70.
Each row 641,642 ... 64n is one group of box body 72, and each box body 72 all stores magnetic tape cassette 4.As mentioned above, magnetic tape cassette 4 can be tape or other recording mediums.
Transporting robot 66 is to be used for magnetic tape cassette 4 is transported to any one drive unit 70 from each box body 72, and the conveyer that is transported to any box body 72 from each drive unit 70.Transport robot 66 and comprise placement unit 6, it is furnished with the grasping mechanism that is used for clamping magnetic tape cassette 4; The connecting gear 74 that also comprises X-axis, Y-axis, Z-direction, it is the robot mechanism unit that is used for placement unit 6 is sent to any box body 72 or drive unit 70.
Placement unit 6 is furnished with apparatus for reading of bar code 2, and as mentioned above, the bar coded sticker 10 of the magnetic tape cassette 4 of 2 pairs of placement unit 6 clampings of apparatus for reading of bar code scans, to read bar code 12.
Controller 68 is made of computing machine, is used for control and transports robot 66, placement unit 6, apparatus for reading of bar code 2, drive unit 70 etc.Controller 68 is furnished with hardware, and for example CPU (CPU (central processing unit)) 76, storage unit 78 and interface (I/F) card 80 also are furnished with software, for example operating system (OS) 82 and firmware (FIRM) 84.I/F card 80 has constituted the I/O unit of controller 68, and controller 68 is connected to external host computing machine 86 (Fig. 8) by I/F card 80.
Drive unit 70 controlled device 68 controls, and be connected to host computer (Fig. 8) so that slave controller 68 or host computer 86 write data in the tape of magnetic tape cassette 4, and will export to controller 68 or host computer 86 from the data that tape reads.In Fig. 5, solid line is represented to be connected with controller 68, and dotted line is represented to be connected with host computer 86.
As shown in Figure 5, apparatus for reading of bar code 2 is placed in the front side of the extracting frame unit 8 of placement unit 6, be made of bar code reading unit 20 and scanning mechanism unit 28, as previously mentioned, the scanning mechanism unit comprises drive motor 46, gear case 44, slide block 40, screw shaft 42 etc.These assemblies are described with reference to figure 4, below repeat no more.
As shown in Figure 6, be connected to driver element 88 controlled device 68 controls of drive motor 46, and apply driving voltage Vd to drive motor 46.The rotation that is connected to the scrambler 48 of drive motor 46 is detected output Ve impose on controller 68, as rotation information.Slave controller 68 applies switch controlling signal Vs to light emitting devices 22, and the output signal Vo of light receiving element 24 imposes on controller 68.
As shown in Figure 7, apparatus for reading of bar code 2 be placed in placement unit 6 with magnetic tape cassette 4 facing surfaces on, and can when magnetic tape cassette 4 or placement unit 6 be ready for clamping before the clamping operation, clamp 14,16 clampings read bar code 12 from bar coded sticker 10.
As shown in Figure 8, controller 68 comprises CPU 76, storage unit 78, I/O register 92, host interface 94 etc., and they connect by bus 96.Storage unit 78 has ROM (ROM (read-only memory)) 98, RAM (random access memory) 99 etc., and ROM 98 has OS 82, FIRM 84 and a plurality of program.FIRM 84 comprises that data bank control and treatment 841, robot control and treatment 842, drive controlling processing 843, bar code read control and treatment 844, host interface processing 845, idle (idle) control and treatment 846 and other programs 847.
Controller 68 moves horizontally, and placement unit 6 is positioned at magnetic tape cassette 4 places in the box body 72, and makes 20 pairs of bar coded stickers of bar code reading unit 10 of apparatus for reading of bar code 2 carry out horizontal scanning, thereby read bar code 12.
That is to say that when magnetic tape cassette 4 in placement unit 6 clampings, the bar code reading unit 20 of apparatus for reading of bar code 2 can level and scanning bar code label 10 abreast.By emission light beam Li in this scanning, can detect and definite reflected light Lr and bar code 12 in secret note 34 and white at interval 36.
Because apparatus for reading of bar code 2 can mobile bar code reading unit 20, make it more near bar coded sticker 10, so apparatus for reading of bar code 2 can reduce the influence of stray light, can accurately detect the width of the bar 34 that is printed on the bar coded sticker 10, and can scan with constant speed, thereby improve reading speed bar code 12.
The control system of apparatus for reading of bar code 2 can be built in the controller 68 of library apparatus 60; Do not need bar code is read the configure dedicated circuit; Driver element 88 (Fig. 6) also can be built in the controller 68.
The operation of library apparatus 60 and apparatus for reading of bar code 2 will be described below.
Operation when describing library apparatus 60 and power on reference to Fig. 9 below.Fig. 9 is the process flow diagram of the operation of library apparatus when powering on.
After powering on, OS 82 be activated (step S1); Hardware diagnostic starts (step S2); Determine diagnostic result whether normally (step S3); If device unusual ("No" of step S3), then operation stops.If device is normal, then read set information (step S4).In this case, set information is the quantity of the quantity of the box body of library apparatus 60, the moving range of transporting robot 66, volume register information, drive unit 70, or the like.
Finish after the reading of set information, start RPS (relative positioning system) and handle, to obtain the positional information (step S5) of transporting robot 66.It is a kind of processing that is used to obtain the relative position information that transports robot 66 and box body 72 that RPS handles, and is a kind of processing that is used to absorb machinery or physical change.
Carry out after this processing, determine whether to have obtained positional information (step S6),, then the magnetic tape cassette 4 that is stored in the box body 72 is rolled up registration if obtained positional information ("Yes" of step S6).Roll up registration by taking inventory (inventory) processing, this is taken inventory and handles is the processing of reading bar code 12 from the bar coded sticker 10 of magnetic tape cassette 4.
Execution is taken inventory after the processing, determines whether to have obtained volume information (step S8), if obtained volume information ("Yes" of step S8), then program changes idle handle (step S9) over to, and stops going up electric treatment.
If, then carry out retry operation, to obtain the positional information (step S10) of transporting robot 66 in the positional information ("No" of step S6) that step S6 can't obtain to transport robot 66; Whether the number of times of monitoring retry operation has reached pre-determined number n (step S11); Repeat retry operation, till the number of times of retry has reached pre-determined number n, to obtain the positional information of transporting robot 66 as far as possible.If the number of times of retry has surpassed pre-determined number n ("Yes" of step S11), then be defined as the unusual and upward electric treatment of termination of device.
If can't obtain volume information ("No" of step S8), then carry out retry operation to obtain volume information (step S12) at step S8; Whether the number of times of monitoring retry has reached pre-determined number n (step S13); Repeat this retry operation, till the number of times of retry has reached pre-determined number n, to obtain the volume information of magnetic tape cassette 4 as far as possible.If the number of times of retry has surpassed pre-determined number n ("Yes" of step S13), then be defined as the unusual and upward electric treatment of termination of device.
Describe magnetic tape cassette with reference to Figure 10 and 11 below and transport operation.Figure 10 is the process flow diagram that the library apparatus magnetic tape cassette transports operation, and Figure 11 is the process flow diagram of the handling procedure of drive unit.
According to from host computer 86 transport instruction (step S21), the table in controller 68 searching storages 78 with recognition objective magnetic tape cassette 4 (step S22), and will transport robot 66 and move and be positioned to any box body 72 (step S23).Determined whether to finish and transported robot 66 location (step S24) to box body 72; Proceeding positioning action finishes until the location; If the location is finished ("Yes" of step S24), then transport robot clamping magnetic tape cassette 4 (step S25).This magnetic tape cassette 4 is carried out bar code 12 read processing (step S26).Carry out this according to process flow diagram shown in Figure 12 and read processing.In this is handled, volume information and the table information that reads from magnetic tape cassette 4 is compared (step S27); If information is identical, then begin to be transported to any drive unit 70 or box body 72 (step S28); Monitor transporting (step S29).Whether finish (step S29 "Yes") if transport, then determining to transport the destination is box body 72 (step S30); If transport the destination is box body 72 ("Yes" of step S30), then the table in the storage unit 78 of controller 68 is upgraded, and circular host computer 86 (step S31); Routine changes over to and idle handles (step S32) then, and turns back to and transport instruction (step S21) from principal computer.
If in step S27 with epiphase than the time, the table do not contain volume information, it is unusual then to be defined as device, then stops this processing (step S33), thereby stops this processing.
If transporting the destination at step S30 is not box body 72 ("No" of step S30), then carries out drive unit shown in Figure 11 and handle (step S34).
As shown in figure 11, in this drive unit is handled, force conveyer (carrier) decline (step S41) of drive unit 70; This drive unit 70 of circular host computer becomes available (step S42); From the read/write instruction of host computer 86 receptions, to carry out read/write process (step S43) at the tape of magnetic tape cassette 4.(step S44) monitored in this processing; If ("Yes" of step S44) finished in this processing, then disconnect connection (step S45) to host computer 86 requests from drive unit 70; Force the conveyer lifting (step S46) of drive unit 70; Execution is to transport (the step S47) of any box body 72; Routine is back to step S34 (Figure 10).
Read to handle with reference to Figure 12 and 13 pairs of bar codes below and be described.Figure 12 is the process flow diagram that bar code reads the processing routine of processing, and Figure 13 shows the bar code read operation.
Read in the processing at bar code, operate, make it to carry out the operation (step S51) that placement unit 6 is positioned to any box body 72 transporting robot 66; This positioning action is monitored (step S52); If finished the location ("Yes" of step S52) of placement unit 6, then clamp 14,16 clamping magnetic tape cassette 4 (step S53) to any box body 72; By the input switch control signal, make light emitting devices 22 luminous (step S54); Wait for a certain period, for example 100[ms], make the vibration that produces by clamping magnetic tape cassette 4 restrain (converge) (step S55); After past stand-by period, drive motor 46 is driven (step S56) with constant speed; And with light beam Li irradiation bar coded sticker 10.
Because can obtain reflected light Lr by irradiates light from bar code 12, thus (step S57) monitored in the response of the output signal of light receiving element 24, thus the output signal of light receiving element 24 is monitored.If have the response ("Yes" of step S57) of output signal, then stop drive motor 46 (step S58); The output signal of light receiving element 24 is stored in (step S59) in the storage unit 78; Whether monitoring exists clear area (step S60); If there is clear area ("Yes" of step S60), then whether monitoring exists initial/position of rest (step S61); If there is initial/position of rest ("Yes" of step S61), then obtain data, to begin decoding (step S62) from storage unit 78.Decoded results is stored in (step S63) in the storage unit 78.
Whether monitoring exists is read target (step S64), if there is no reads target ("No" of step S64), then carries out to read and finishes processing (step S65), to stop reading bar coded sticker 10.Read target ("Yes" of step S64) if exist, then routine turns back to step S51.
If can't obtain the output signal ("No" of step S57) of light receiving element 24, think that then to have certain unusual; Therefore, determine whether drive motor 46 is driven (step S66); If drive motor 46 is not driven ("No" of step S66), then be defined as this motor abnormality (step S67); Stop this processing then.
If drive motor 46 is driven ("Yes" of step S66), then diagnostic light receiving device 24 (step S68) if light receiving element 24 unusual ("No" of step S68) is then determined (step S69) unusually, stops this processing then.
If light receiving element 24 normal ("Yes" of step S68), diagnostic light ballistic device 22 (step S70) then, if light emitting devices 22 unusual ("No" of step S70), then determining should unusual (step S71) and stop this processing.If light emitting devices 22 normal ("Yes" of step S70), then routine forwards step S58 to.
If do not have clear area ("No" of step S60), then progressively change translational speed, and determine whether the number of times that changes has surpassed pre-determined number n (step S72) at step S60; Be equal to or less than pre-determined number n ("No" of step S72) if change number of times, the translational speed that then slows down makes it be lower than just often speed (step S73); Routine forwards step S57 to then.Even if surpass under the situation of pre-determined number n and still can't detect bar code 12 ("Yes" of step S72) changing number of times, then think bar coded sticker 10 unusual (step S74), and stop this processing.
As shown in FIG. 13A, when placement unit 6 is positioned to any box body 72, use the bar coded sticker 10 that shines magnetic tape cassette 4 from the light beam Li of the light emitting devices 22 of the bar code reading unit 20 of apparatus for reading of bar code 2, and come detection of reflected light Lr by light receiving element 24.In the single processing shown in Figure 13 B, carry out bar code 10 detection processing and magnetic tape cassette 4 and transport processing.
As mentioned above, because bar code reading unit is positioned on the front surface of placement unit 6,, make read operation and to transport operation integrated so can in the clamping of placement unit 6 operation, read the bar coded sticker 10 of magnetic tape cassette 4.That is to say, when when magnetic tape cassette 4 is put in the outside of library apparatus 60, because can be from box body 72 clamping magnetic tape cassette 4, thereby in a processing, carry out the processing of transporting of reading processing and extremely any box body 72, simplify and the acceleration execution so handle to access to bar coded sticker 10.
Because in this structure, apparatus for reading of bar code 2 is placed in the height of placement unit 6, so than conventional construction (wherein barcode reader is placed in the top of placement unit), the moving range of placement unit 6 can enlarge to upside, and because the expansion of this moving range, can settle a plurality of box bodys extraly, thereby increase the storage capacity of library apparatus 60, perhaps make library apparatus 60 miniaturization under same storage capacity for magnetic tape cassette 4.
For the moving range of placement unit 6 in the library apparatus 60 and the relation between the box body 72, because apparatus for reading of bar code 2 is built in the placement unit 6, shown in Figure 14 A, so placement unit 6 can be moved upward to the upper space of housing unit 62.Although in traditional library apparatus 100 as shown in Figure 14B, there is height Δ h between the position of the barcode detection position of barcode reader 108 and clamp 110,112, but because the placement unit 6 shown in Figure 14 A does not have this height Δ h, so the moving range of placement unit 6 obtains enlarging, and the quantity of the box body of settling in the housing unit 62 72 increases.In traditional library apparatus 100, space 164 must be guaranteed, so that barcode reader 108 can move, thereby magnetic tape cassette 102 is inserted in the uppermost box body 116 or from uppermost box body 116 shifts out magnetic tape cassette 102, space 164 is wasted space and the miniaturization that has hindered housing unit 162.Therefore, in library apparatus 60 of the present invention, when the quantity of the box body of being settled 72 was identical, the height of housing unit 62 can reduce, thereby realized the miniaturization of library apparatus 60.
[other embodiment]
Though in above embodiment magnetic tape cassette 4 is illustrated as carried object, carried object can be any carried object with bar coded sticker 10, and the present invention is not limited to magnetic tape cassette 4.
The present invention relates to a kind of apparatus for reading of bar code, be used to read the bar coded sticker that is attached on the carried object (for example tape cassete), can be held to transport or carried object reads bar code when being ready to be held at carried object, this apparatus for reading of bar code has certain purposes, because the present invention can realize the simplification that bar code reads and transport, the expansion of carried object moving range, miniaturization of library apparatus or the like.
Though describe illustration of the present invention and currently preferred embodiment here in detail, but should be understood that, notion of the present invention can be implemented or adopts according to other multiple modes, and claims should be interpreted as comprising this variation, unless this variation is limited by prior art.
The application is based on the No.2006-48419 of Japanese patent application formerly that submitted on February 24th, 2006 and require its right of priority, is incorporated herein by reference in its entirety.

Claims (15)

1, a kind of apparatus for reading of bar code, it comprises bar code reading unit, this bar code reading unit is built in the housing of placement unit of clamping carried object, bar code reading unit reads the bar code of carried object, and this apparatus for reading of bar code reads bar code from the carried object of placement unit clamping.
2, apparatus for reading of bar code according to claim 1,
The Optical Transmit Unit of wherein said bar code reading unit and light receiving unit are arranged on the front surface relative with carried object in the placement unit housing.
3, apparatus for reading of bar code according to claim 1,
Wherein said bar code reading unit comprises pointolite and light receiving unit, by luminous and receive reflected light from bar code to bar code from pointolite, and produces the output signal of representing bar code.
4, apparatus for reading of bar code according to claim 1,
Wherein said placement unit comprises the scanning mechanism unit, and it makes described bar code reading unit be parallel to bar code and scans.
5, apparatus for reading of bar code according to claim 1 comprises:
The scanning mechanism unit, it is by installing the screw shaft that can rotate in described placement unit, and by motor this screw shaft is rotated, and makes described bar code reading unit be parallel to bar code and scans.
6, apparatus for reading of bar code according to claim 1,
Wherein in described placement unit clamping under the situation of carried object, the Optical Transmit Unit in the bar code reading unit is operated, make it receive reflected light from bar code.
7, a kind of bar code read method comprises following processing:
Utilize placement unit to come the clamping carried object;
Be parallel to that the bar code that is attached on the carried object scans and luminous to bar code; And
The reflected light that obtains from bar code is detected, thereby obtain the detection information of this bar code.
8, bar code read method according to claim 7 comprises following processing:
Come scanning bar code with the light that is sent; And
Correspondingly detect reflected light with photoscanning from bar code.
9, bar code read method according to claim 7,
Wherein carried object can be the tape cassete with bar coded sticker.
10, a kind of library apparatus is used to store magnetic tape cassette, comprising:
Delivery unit is used to transport magnetic tape cassette; And
Bar code reading unit, it is built in to be installed in and is used on the delivery unit in the housing of placement unit of clamping magnetic tape cassette, and this bar code reading unit reads the bar code of magnetic tape cassette,
Described library apparatus reads bar code from the magnetic tape cassette of placement unit clamping.
11, library apparatus according to claim 10,
The Optical Transmit Unit of wherein said bar code reading unit and light receiving unit are arranged on the front surface relative with magnetic tape cassette in the placement unit housing.
12, library apparatus according to claim 10,
Wherein said bar code reading unit comprises pointolite and light receiving unit, by luminous and receive reflected light from bar code to bar code from pointolite, and produces the output signal of representing bar code.
13, library apparatus according to claim 10,
Wherein said placement unit comprises the scanning mechanism unit, and it makes described bar code reading unit be parallel to bar code and scans.
14, library apparatus according to claim 10 comprises:
The scanning mechanism unit, it is by installing the screw shaft that can rotate in described placement unit, and by motor this screw shaft is rotated, and makes described bar code reading unit be parallel to bar code and scans.
15, library apparatus according to claim 10,
Wherein in described placement unit clamping under the situation of magnetic tape cassette, the Optical Transmit Unit in the bar code reading unit is operated, make it receive reflected light from bar code.
CN2006100922724A 2006-02-24 2006-06-16 Bar-code reading apparatus, bar-code reading method, and library apparatus Expired - Fee Related CN101025971B (en)

Applications Claiming Priority (3)

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JP2006-048419 2006-02-24
JP2006048419A JP4328332B2 (en) 2006-02-24 2006-02-24 Bar code reading apparatus, bar code reading method, bar code reading program, and library apparatus
JP2006048419 2006-02-24

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US20070199997A1 (en) 2007-08-30
JP4328332B2 (en) 2009-09-09

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